Commit graph

450 commits

Author SHA1 Message Date
Dr. Matthias St. Pierre
812b153706 DRBG: make locking api truly private
In PR #5295 it was decided that the locking api should remain private
and used only inside libcrypto. However, the locking functions were added
back to `libcrypto.num` by `mkdef.pl`, because the function prototypes
were still listed in `internal/rand.h`. (This header contains functions
which are internal, but shared between libcrypto and libssl.)

This commit moves the prototypes to `rand_lcl.h` and changes the names
to lowercase, following the convention therein. It also corrects an
outdated documenting comment.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5375)
2018-02-15 12:25:01 +01:00
Dr. Matthias St. Pierre
3ce1c27b56 DRBG: add locking api
This commit adds three new accessors to the internal DRBG lock

   int RAND_DRBG_lock(RAND_DRBG *drbg)
   int RAND_DRBG_unlock(RAND_DRBG *drbg)
   int RAND_DRBG_enable_locking(RAND_DRBG *drbg)

The three shared DRBGs are intended to be used concurrently, so they
have locking enabled by default. It is the callers responsibility to
guard access to the shared DRBGs by calls to RAND_DRBG_lock() and
RAND_DRBG_unlock().

All other DRBG instances don't have locking enabled by default, because
they are intendended to be used by a single thread. If it is desired,
locking can be enabled by using RAND_DRBG_enable_locking().

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5294)
2018-02-13 17:32:54 +01:00
Matt Caswell
6738bf1417 Update copyright year
Reviewed-by: Richard Levitte <levitte@openssl.org>
2018-02-13 13:59:25 +00:00
Rich Salz
6dbe4dc475 Copy name string in BIO_meth_new
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5318)
2018-02-10 13:36:47 -05:00
Nick Mathewson
41e9afa945 In err_all.c, include the *err.h headers.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5150)
2018-02-09 17:49:07 +01:00
Todd Short
9d75dce3e1 Add TLSv1.3 post-handshake authentication (PHA)
Add SSL_verify_client_post_handshake() for servers to initiate PHA

Add SSL_force_post_handshake_auth() for clients that don't have certificates
initially configured, but use a certificate callback.

Update SSL_CTX_set_verify()/SSL_set_verify() mode:

* Add SSL_VERIFY_POST_HANDSHAKE to postpone client authentication until after
the initial handshake.

* Update SSL_VERIFY_CLIENT_ONCE now only sends out one CertRequest regardless
of when the certificate authentication takes place; either initial handshake,
re-negotiation, or post-handshake authentication.

Add 'RequestPostHandshake' and 'RequirePostHandshake' SSL_CONF options that
add the SSL_VERIFY_POST_HANDSHAKE to the 'Request' and 'Require' options

Add support to s_client:
* Enabled automatically when cert is configured
* Can be forced enabled via -force_pha

Add support to s_server:
* Use 'c' to invoke PHA in s_server
* Remove some dead code

Update documentation

Update unit tests:
* Illegal use of PHA extension
* TLSv1.3 certificate tests

DTLS and TLS behave ever-so-slightly differently. So, when DTLS1.3 is
implemented, it's PHA support state machine may need to be different.
Add a TODO and a #error

Update handshake context to deal with PHA.

The handshake context for TLSv1.3 post-handshake auth is up through the
ClientFinish message, plus the CertificateRequest message. Subsequent
Certificate, CertificateVerify, and Finish messages are based on this
handshake context (not the Certificate message per se, but it's included
after the hash). KeyUpdate, NewSessionTicket, and prior Certificate
Request messages are not included in post-handshake authentication.

After the ClientFinished message is processed, save off the digest state
for future post-handshake authentication. When post-handshake auth occurs,
copy over the saved handshake context into the "main" handshake digest.
This effectively discards the any KeyUpdate or NewSessionTicket messages
and any prior post-handshake authentication.

This, of course, assumes that the ID-22 did not mean to include any
previous post-handshake authentication into the new handshake transcript.
This is implied by section 4.4.1 that lists messages only up to the
first ClientFinished.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4964)
2018-02-01 17:07:56 +00:00
Benjamin Kaduk
63ab5ea13b Revert the crypto "global lock" implementation
Conceptually, this is a squashed version of:

    Revert "Address feedback"

    This reverts commit 75551e07bd.

and

    Revert "Add CRYPTO_thread_glock_new"

    This reverts commit ed6b2c7938.

But there were some intervening commits that made neither revert apply
cleanly, so instead do it all as one shot.

The crypto global locks were an attempt to cope with the awkward
POSIX semantics for pthread_atfork(); its documentation (the "RATIONALE"
section) indicates that the expected usage is to have the prefork handler
lock all "global" locks, and the parent and child handlers release those
locks, to ensure that forking happens with a consistent (lock) state.
However, the set of functions available in the child process is limited
to async-signal-safe functions, and pthread_mutex_unlock() is not on
the list of async-signal-safe functions!  The only synchronization
primitives that are async-signal-safe are the semaphore primitives,
which are not really appropriate for general-purpose usage.

However, the state consistency problem that the global locks were
attempting to solve is not actually a serious problem, particularly for
OpenSSL.  That is, we can consider four cases of forking application
that might use OpenSSL:

(1) Single-threaded, does not call into OpenSSL in the child (e.g.,
the child calls exec() immediately)

For this class of process, no locking is needed at all, since there is
only ever a single thread of execution and the only reentrancy is due to
signal handlers (which are themselves limited to async-signal-safe
operation and should not be doing much work at all).

(2) Single-threaded, calls into OpenSSL after fork()

The application must ensure that it does not fork() with an unexpected
lock held (that is, one that would get unlocked in the parent but
accidentally remain locked in the child and cause deadlock).  Since
OpenSSL does not expose any of its internal locks to the application
and the application is single-threaded, the OpenSSL internal locks
will be unlocked for the fork(), and the state will be consistent.
(OpenSSL will need to reseed its PRNG in the child, but that is
an orthogonal issue.)  If the application makes use of locks from
libcrypto, proper handling for those locks is the responsibility of
the application, as for any other locking primitive that is available
for application programming.

(3) Multi-threaded, does not call into OpenSSL after fork()

As for (1), the OpenSSL state is only relevant in the parent, so
no particular fork()-related handling is needed.  The internal locks
are relevant, but there is no interaction with the child to consider.

(4) Multi-threaded, calls into OpenSSL after fork()

This is the case where the pthread_atfork() hooks to ensure that all
global locks are in a known state across fork() would come into play,
per the above discussion.  However, these "calls into OpenSSL after
fork()" are still subject to the restriction to async-signal-safe
functions.  Since OpenSSL uses all sorts of locking and libc functions
that are not on the list of safe functions (e.g., malloc()), this
case is not currently usable and is unlikely to ever be usable,
independently of the locking situation.  So, there is no need to
go through contortions to attempt to support this case in the one small
area of locking interaction with fork().

In light of the above analysis (thanks @davidben and @achernya), go
back to the simpler implementation that does not need to distinguish
"library-global" locks or to have complicated atfork handling for locks.

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/5089)
2018-01-31 12:25:28 -06:00
Benjamin Kaduk
c589c34e61 Add support for the TLS 1.3 signature_algorithms_cert extension
The new extension is like signature_algorithms, but only for the
signature *on* the certificate we will present to the peer (the
old signature_algorithms extension is still used for signatures that
we *generate*, i.e., those over TLS data structures).

We do not need to generate this extension, since we are the same
implementation as our X.509 stack and can handle the same types
of signatures, but we need to be prepared to receive it, and use the received
information when selecting what certificate to present.

There is a lot of interplay between signature_algorithms_cert and
signature_algorithms, since both affect what certificate we can
use, and thus the resulting signature algorithm used for TLS messages.
So, apply signature_algorithms_cert (if present) as a filter on what
certificates we can consider when choosing a certificate+sigalg
pair.

As part of this addition, we also remove the fallback code that let
keys of type EVP_PKEY_RSA be used to generate RSA-PSS signatures -- the
new rsa_pss_pss_* and rsa_pss_rsae_* signature schemes have pulled
the key type into what is covered by the signature algorithm, so
we should not apply this sort of compatibility workaround.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5068)
2018-01-25 12:57:22 -06:00
David Cooper
0494014781 Make editorial changes suggested by Matt Caswell and fixed Travis failures.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4190)
2018-01-24 18:30:31 +00:00
Matt Caswell
43054d3d73 Add support for sending TLSv1.3 cookies
This just adds the various extension functions. More changes will be
required to actually use them.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4435)
2018-01-24 18:02:35 +00:00
Richard Levitte
3bf0c3fe31 Have EVP_PKEY_asn1_find_str() work more like EVP_PKEY_asn1_find()
EVP_PKEY_asn1_find_str() would search through standard asn1 methods
first, then those added by the application, which EVP_PKEY_asn1_find()
worked the other way around.  Also, EVP_PKEY_asn1_find_str() didn't
handle aliases.

This change brings EVP_PKEY_asn1_find_str() closer to EVP_PKEY_asn1_find().

Fixes #5086

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/5137)
2018-01-23 20:27:32 +01:00
Richard Levitte
48e5119a6b Copyright update of more files that have changed this year
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/5110)
2018-01-19 13:34:03 +01:00
Andy Polyakov
eb7916960b ec/ecp_nistz256.c: improve ECDSA sign by 30-40%.
This is based on RT#3810, which added dedicated modular inversion.
ECDSA verify results improves as well, but not as much.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5001)
2018-01-07 21:31:37 +01:00
Dr. Matthias St. Pierre
8212d50576 crypto/rand: restore the generic DRBG implementation
The DRGB concept described in NIST SP 800-90A provides for having different
algorithms to generate random output. In fact, the FIPS object module used to
implement three of them, CTR DRBG, HASH DRBG and HMAC DRBG.

When the FIPS code was ported to master in #4019, two of the three algorithms
were dropped, and together with those the entire code that made RAND_DRBG
generic was removed, since only one concrete implementation was left.

This commit restores the original generic implementation of the DRBG, making it
possible again to add additional implementations using different algorithms
(like RAND_DRBG_CHACHA20) in the future.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4998)
2018-01-04 11:47:31 +10:00
Todd Short
67204031b6 Fix 'make update'
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4931)
2017-12-14 23:42:23 +00:00
Matt Caswell
426dfc9ff7 Send supported_versions in an HRR
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4701)
2017-12-14 15:06:37 +00:00
Matt Caswell
597c51bc98 Merge HRR into ServerHello
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4701)
2017-12-14 15:06:37 +00:00
Matt Caswell
fdd9236747 Drop CCS messages received in the TLSv1.3 handshake
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4701)
2017-12-14 15:06:37 +00:00
Matt Caswell
a5816a5ab9 Implement session id TLSv1.3 middlebox compatibility mode
Clients will send a "fake" session id and servers must echo it back.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4701)
2017-12-14 15:06:37 +00:00
Matt Caswell
88050dd196 Update ServerHello to new draft-22 format
The new ServerHello format is essentially now the same as the old TLSv1.2
one, but it must additionally include supported_versions. The version
field is fixed at TLSv1.2, and the version negotiation happens solely via
supported_versions.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4701)
2017-12-14 15:06:37 +00:00
Richard Levitte
aef84bb4ef Fix leak in ERR_get_state() when OPENSSL_init_crypto() isn't called yet
If OPENSSL_init_crypto() hasn't been called yet when ERR_get_state()
is called, it need to be called early, so the base initialization is
done.  On some platforms (those who support DSO functionality and
don't define OPENSSL_USE_NODELETE), that includes a call of
ERR_set_mark(), which calls this function again.
Furthermore, we know that ossl_init_thread_start(), which is called
later in ERR_get_state(), calls OPENSSL_init_crypto(0, NULL), except
that's too late.
Here's what happens without an early call of OPENSSL_init_crypto():

    => ERR_get_state():
         => CRYPTO_THREAD_get_local():
         <= NULL;
         # no state is found, so it gets allocated.
         => ossl_init_thread_start():
              => OPENSSL_init_crypto():
                   # Here, base_inited is set to 1
                   # before ERR_set_mark() call
                   => ERR_set_mark():
                        => ERR_get_state():
                             => CRYPTO_THREAD_get_local():
                             <= NULL;
                             # no state is found, so it gets allocated!!!!!
                             => ossl_init_thread_start():
                                  => OPENSSL_init_crypto():
                                       # base_inited is 1,
                                       # so no more init to be done
                                  <= 1
                             <=
                             => CRYPTO_thread_set_local():
                             <=
                        <=
                   <=
              <= 1
         <=
         => CRYPTO_thread_set_local()      # previous value removed!
    <=

Result: double allocation, and we have a leak.

By calling the base OPENSSL_init_crypto() early, we get this instead:

    => ERR_get_state():
         => OPENSSL_init_crypto():
              # Here, base_inited is set to 1
              # before ERR_set_mark() call
              => ERR_set_mark():
                   => ERR_get_state():
                        => OPENSSL_init_crypto():
                             # base_inited is 1,
                             # so no more init to be done
                        <= 1
                        => CRYPTO_THREAD_get_local():
                        <= NULL;
                        # no state is found, so it gets allocated
                        # let's assume we got 0xDEADBEEF
                        => ossl_init_thread_start():
                             => OPENSSL_init_crypto():
                                  # base_inited is 1,
                                  # so no more init to be done
                             <= 1
                        <= 1
                        => CRYPTO_thread_set_local():
                        <=
                   <=
              <=
         <= 1
         => CRYPTO_THREAD_get_local():
         <= 0xDEADBEEF
    <= 0xDEADBEEF

Result: no leak.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4913)
2017-12-12 17:24:24 +01:00
Matt Caswell
921d84a0ad Convert the remaining functions in the record layer to use SSLfatal()
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4841)
2017-12-08 16:42:02 +00:00
FdaSilvaYY
a0fda2cf2d Address some code-analysis issues.
Expression '...' is always true.
The 'b->init' variable is assigned values twice successively

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4753)
2017-12-08 10:49:41 -05:00
Rich Salz
cbe2964821 Consistent formatting for sizeof(foo)
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4872)
2017-12-07 19:11:49 -05:00
Matt Caswell
29bfd5b79a Add some more cleanups
Follow up from the conversion to use SSLfatal() in the state machine to
clean things up a bit more.

[extended tests]

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4778)
2017-12-04 13:31:48 +00:00
Matt Caswell
47e2ee0722 Add some sanity checks for the fatal error condition
Sometimes at the top level of the state machine code we know we are
supposed to be in a fatal error condition. This commit adds some sanity
checks to ensure that SSLfatal() has been called.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4778)
2017-12-04 13:31:48 +00:00
Matt Caswell
635c8f7715 Fix up a few places in the state machine that got missed with SSLfatal()
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4778)
2017-12-04 13:31:48 +00:00
Matt Caswell
d4d2f3a4c1 Convert more functions in ssl/statem/statem.c to use SSLfatal()
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4778)
2017-12-04 13:31:48 +00:00
Matt Caswell
3ec8d113a5 Convert remaining functions in statem_srvr.c to use SSLfatal()
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4778)
2017-12-04 13:31:48 +00:00
Matt Caswell
a2c2e00050 Convert remaining functions in statem_clnt.c to use SSLfatal()
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4778)
2017-12-04 13:31:48 +00:00
Matt Caswell
f63a17d66d Convert the state machine code to use SSLfatal()
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4778)
2017-12-04 13:31:48 +00:00
David Benjamin
10a3195fcf Pretty-print large INTEGERs and ENUMERATEDs in hex.
This avoids taking quadratic time to pretty-print certificates with
excessively large integer fields. Very large integers aren't any more
readable in decimal than hexadecimal anyway, and the i2s_* functions
will parse either form.

Found by libFuzzer.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4790)
2017-11-25 09:23:34 -05:00
Paul Yang
665d899fa6 Support multi-prime RSA (RFC 8017)
* Introduce RSA_generate_multi_prime_key to generate multi-prime
  RSA private key. As well as the following functions:
    RSA_get_multi_prime_extra_count
    RSA_get0_multi_prime_factors
    RSA_get0_multi_prime_crt_params
    RSA_set0_multi_prime_params
    RSA_get_version
* Support EVP operations for multi-prime RSA
* Support ASN.1 operations for multi-prime RSA
* Support multi-prime check in RSA_check_key_ex
* Support multi-prime RSA in apps/genrsa and apps/speed
* Support multi-prime RSA manipulation functions
* Test cases and documentation are added
* CHANGES is updated

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/4241)
2017-11-21 14:38:42 +08:00
Paul Yang
b000470873 Support public key and param check in EVP interface
EVP_PKEY_public_check() and EVP_PKEY_param_check()

Doc and test cases are added

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4647)
2017-11-20 07:20:30 +01:00
FdaSilvaYY
cf72c75792 Implement Maximum Fragment Length TLS extension.
Based on patch from Tomasz Moń:
https://groups.google.com/forum/#!topic/mailing.openssl.dev/fQxXvCg1uQY

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/1008)
2017-11-05 17:46:48 +01:00
Richard Levitte
79204b9cd7 make update
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/4596)
2017-10-30 18:27:58 +01:00
KaoruToda
26a7d938c9 Remove parentheses of return.
Since return is inconsistent, I removed unnecessary parentheses and
unified them.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4541)
2017-10-18 16:05:06 +01:00
Dr. Matthias St. Pierre
c16de9d832 Fix reseeding issues of the public RAND_DRBG
Reseeding is handled very differently by the classic RAND_METHOD API
and the new RAND_DRBG api. These differences led to some problems when
the new RAND_DRBG was made the default OpenSSL RNG. In particular,
RAND_add() did not work as expected anymore. These issues are discussed
on the thread '[openssl-dev] Plea for a new public OpenSSL RNG API'
and in Pull Request #4328. This commit fixes the mentioned issues,
introducing the following changes:

- Replace the fixed size RAND_BYTES_BUFFER by a new RAND_POOL API which
  facilitates collecting entropy by the get_entropy() callback.
- Don't use RAND_poll()/RAND_add() for collecting entropy from the
  get_entropy() callback anymore. Instead, replace RAND_poll() by
  RAND_POOL_acquire_entropy().
- Add a new function rand_drbg_restart() which tries to get the DRBG
  in an instantiated state by all means, regardless of the current
  state (uninstantiated, error, ...) the DRBG is in. If the caller
  provides entropy or additional input, it will be used for reseeding.
- Restore the original documented behaviour of RAND_add() and RAND_poll()
  (namely to reseed the DRBG immediately) by a new implementation based
  on rand_drbg_restart().
- Add automatic error recovery from temporary failures of the entropy
  source to RAND_DRBG_generate() using the rand_drbg_restart() function.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4328)
2017-10-18 08:39:20 -05:00
Dr. Stephen Henson
549be25303 make update
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4485)
2017-10-12 02:41:27 +01:00
Dr. Stephen Henson
3f8b368a27 make update
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4503)
2017-10-12 00:03:32 +01:00
Rich Salz
fa4dd546c5 Rewrite some code
Rewrite the -req-nodes flag from CA.pl (idea from Andy)
Rewrite ERR_string_error_n

Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4478)
2017-10-07 11:26:35 -04:00
Todd Short
a84e5c9aa8 Session resume broken switching contexts
When an SSL's context is swtiched from a ticket-enabled context to
a ticket-disabled context in the servername callback, no session-id
is generated, so the session can't be resumed.

If a servername callback changes the SSL_OP_NO_TICKET option, check
to see if it's changed to disable, and whether a session ticket is
expected (i.e. the client indicated ticket support and the SSL had
tickets enabled at the time), and whether we already have a previous
session (i.e. s->hit is set).

In this case, clear the ticket-expected flag, remove any ticket data
and generate a session-id in the session.

If the SSL hit (resumed) and switched to a ticket-disabled context,
assume that the resumption was via session-id, and don't bother to
update the session.

Before this fix, the updated unit-tests in 06-sni-ticket.conf would
fail test #4 (server1 = SNI, server2 = no SNI).

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/1529)
2017-10-04 10:21:08 +10:00
Pauli
f32b0abe26 Remove unnecessary #include <openssl/lhash.h> directives.
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4431)
2017-09-29 07:38:56 +10:00
Rich Salz
6807b84eac Fix function name in ECerr call
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4371)
2017-09-14 16:13:29 -04:00
Paul Yang
2aee35d37d Support key check in EVP interface
A new method is added to EVP_PKEY_METH as:

    int (*check) (EVP_PKEY_CTX *ctx);

and to EVP_PKEY_ASN1_METHOD as:

    int (*pkey_check) (EVP_PKEY_CTX *ctx);

This is used to check the validity of a specific key.

The order of calls is:
EVP_PKEY_check -> pmeth.check -> ameth.pkey_check.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4337)
2017-09-13 20:38:14 +02:00
Richard Levitte
4e049e2c36 Add UI functions to set result with explicit length and to retrieve the length
This allows completely arbitrary passphrases to be entered, including
NUL bytes.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/3821)
2017-09-08 20:06:06 +02:00
Rich Salz
ed6b2c7938 Add CRYPTO_thread_glock_new
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4294)
2017-08-31 19:42:03 -04:00
Matt Caswell
ffc5bbaaee Complain if we are writing early data but SNI or ALPN is incorrect
SNI and ALPN must be set to be consistent with the PSK. Otherwise this is
an error.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/3926)
2017-08-31 15:03:34 +01:00
Jon Spillett
bc32673869 Implement Aria GCM/CCM Modes and TLS cipher suites
AEAD cipher mode implementation is based on that used for AES:

  https://tools.ietf.org/html/rfc5116

TLS GCM cipher suites as specified in:

  https://tools.ietf.org/html/rfc6209

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4287)
2017-08-30 12:33:53 +02:00
Rich Salz
176db6dc51 Use "" not <> for internal/ includes
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4217)
2017-08-22 09:54:20 -04:00
Andy Polyakov
8909c2ceee err/err.c: improve readability.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2017-08-18 09:24:52 +02:00
Andy Polyakov
d3d880ce01 err/err.c: fix "wraparound" bug in ERR_set_error_data.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2017-08-18 09:24:44 +02:00
Richard Levitte
e1a4ff7678 Add ERR_clear_last_mark()
This allows callers to set a mark, and then clear it without removing
the errors.  Useful in case an error is encountered that should be
returned up the call stack.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4094)
2017-08-15 14:26:12 +02:00
Andy Polyakov
cd8d1456c9 Add EVP_DigestFinalXOF, interface to extendable-output functions, XOFs.
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4137)
2017-08-12 12:20:06 +02:00
Johannes Bauer
cefa762ee5 Add interface to the scrypt KDF by means of PKEY_METHOD
Add an interface that allows accessing the scrypt KDF as a PKEY_METHOD.
This fixes #4021 (at least for the scrypt portion of the issue).

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Stephen Henson <steve@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4026)
2017-08-08 15:44:49 +01:00
Rich Salz
ddc6a5c8f5 Add RAND_priv_bytes() for private keys
Add a new global DRBG for private keys used by RAND_priv_bytes.

Add BN_priv_rand() and BN_priv_rand_range() which use RAND_priv_bytes().
Change callers to use the appropriate BN_priv... function.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4076)
2017-08-03 10:45:17 -04:00
Johannes Bauer
5b27751923 Added differentiation between missing secret and missing seed
This was previously mistakenly handled as a single error code.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Stephen Henson <steve@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3989)
2017-08-03 01:07:52 +01:00
Johannes Bauer
f55129c739 Changed use of EVP_PKEY_CTX_md() and more specific error codes
Changed HKDF to use EVP_PKEY_CTX_md() (review comment of @snhenson) and
introduced more specific error codes (not only indicating *that* some
parameter is missing, but actually *which* one it is).

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Stephen Henson <steve@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3989)
2017-08-03 01:07:52 +01:00
Johannes Bauer
a24a5b8cc4 More error handling to HKDF and one more case in TLS1-PRF
HKDF now handles an invalid digest like TLS1-PRF does (i.e., returns
KDF_R_INVALID_DIGEST if the passed digest is not known). Both KDFs now
set the error code KDF_R_UNKNOWN_PARAMETER_TYPE if a type was passed
that is not recognized. This will have the effect of improving debugging
output in case a user uses "openssl pkeyutl -kdf ..." in a wrong way and
result in an actual error code (instead of just "failure" and an empty
error stack).

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Stephen Henson <steve@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3989)
2017-08-03 01:07:52 +01:00
Johannes Bauer
e65f650922 Set error when HKDF used without parameters
Introduce KDF_F_PKEY_HKDF_DERIVE and return the KDF_R_MISSING_PARAMETER
error code when required parameters have not been set. This will make
"openssl pkeyutl -kdf HKDF" return a meaningful error message instead of
simply "Public Key operation error".

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Stephen Henson <steve@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3989)
2017-08-03 01:07:52 +01:00
Benjamin Kaduk
354ab3653c Define a value for SYS_F_FCNTL
This symbol was added in commit d33b215b33
but was only used in certain (presumed uncommon) preprocessor conditionals,
as no build failures have been reported yet.

Reported by Balaji Marisetti.

Closes: #4029

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4030)
2017-07-27 10:48:55 -05:00
Rich Salz
12fb8c3d2d Add DRBG random method
Ported from the last FIPS release, with DUAL_EC and SHA1 and the
self-tests removed.  Since only AES-CTR is supported, other code
simplifications were done.  Removed the "entropy blocklen" concept.

Moved internal functions to new include/internal/rand.h.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/3789)
2017-07-19 03:25:16 -04:00
Richard Levitte
ba476aa32c OSSL_STORE: spell error reason correctly
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3907)
2017-07-15 18:53:07 +02:00
Rich Salz
c784a838e0 Fix bug in err_string_data_cmp
Unsigned overflow.  Thanks to Brian Carpenter for reporting this.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3887)
2017-07-13 17:36:19 -04:00
Dr. Stephen Henson
ebefced904 make errors
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3858)
2017-07-13 12:38:42 +01:00
Rich Salz
9ee344f5cd Cleanup RAND_load_file,RAND_write_file
Document an internal assumption that these are only for use with files,
and return an error if not. That made the code much simpler.
Leave it as writing 1024 bytes, even though we don't need more than 256
from a security perspective.  But the amount isn't specified, now, so we
can change it later if we want.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3864)
2017-07-06 13:59:11 -04:00
Rich Salz
e2dba64c84 Fix crash
[extended tests]

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3700)
2017-07-05 17:06:57 -04:00
Rich Salz
0791bef0d4 Undo commit 40720ce
Comment in the commit:
    /* Ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3700)
2017-07-05 17:06:57 -04:00
Richard Levitte
48feaceb53 Remove the possibility to disable the UI module entirely
Instead, make it possible to disable the console reader that's part of
the UI module.  This makes it possible to use the UI API and other UI
methods in environments where the console reader isn't useful.

To disable the console reader, configure with 'no-ui-console' /
'disable-ui-console'.

'no-ui' / 'disable-ui' is now an alias for  'no-ui-console' /
'disable-ui-console'.

Fixes #3806

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3820)
2017-07-03 07:51:04 +02:00
Richard Levitte
5ee407460b STORE: Make sure the loader to be registered is complete
Most of the loader function pointers are crucial, they must be defined
unconditionally.  Therefore, let's make sure OSSL_STORE_register_loader
refuses to register incomplete loaders

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/3805)
2017-06-29 22:11:40 +02:00
Richard Levitte
4c17819c41 Add internal functions to fetch PEM data from an opened BIO
store_attach_pem_bio() creates a STORE_CTX with the 'file' scheme
loader backend in PEM reading mode on an already opened BIO.
store_detach_pem_bio() detaches the STORE_CTX from the BIO and
destroys it (without destroying the BIO).

These two functions can be used in place of STORE_open() and
STORE_close(), and are present as internal support for other OpenSSL
functions.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2745)
2017-06-29 19:25:39 +02:00
Richard Levitte
7852f588a6 Make it possible to tell the file loader to use secure memory
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3483)
2017-06-29 19:19:40 +02:00
Richard Levitte
970f467ac3 STORE 'file' scheme loader: Add directory listing capability
This has it recognised when the given path is a directory.  In that
case, the file loader will give back a series of names, all as URI
formatted as possible given the incoming URI.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3542)
2017-06-29 11:55:32 +02:00
Richard Levitte
7ad2ef366c STORE 'file' scheme loader: Add handler for encrypted PKCS#8 data
Add a separate handler for encrypted PKCS#8 data.  This uses the new
restart functionality.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3542)
2017-06-29 11:55:32 +02:00
Richard Levitte
1aabc2445b STORE 'file' scheme loader: refactor file_load to support decoding restart
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3542)
2017-06-29 11:55:32 +02:00
Richard Levitte
50ecedda40 STORE: Add a OSSL_STORE_INFO type to help support file handler restarts
Some containers might very simply decode into something new that
deserves to be considered as new (embedded) data.  With the help of a
special OSSL_STORE_INFO type, make that new data available to the
loader functions so they can start over.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3542)
2017-06-29 11:55:31 +02:00
Richard Levitte
a09003ea22 STORE 'file' scheme loader: add support for the PKCS#12 container
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3542)
2017-06-29 11:55:31 +02:00
Richard Levitte
e61ec2d9ba STORE 'file' scheme loader: add support for containers
Containers are objects that are containers for a bunch of other
objects with types we recognise but aren't readable in a stream.  Such
containers are read and parsed, and their content is cached, to be
served one object at a time.

This extends the FILE_HANDLER type to include a function to destroy
the cache and a function to simulate the EOF check.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3542)
2017-06-29 11:55:31 +02:00
Richard Levitte
9c6da42d0c Add a STORE loader for the "file" scheme
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3542)
2017-06-29 11:55:31 +02:00
Richard Levitte
71a5516dcc Add the STORE module
This STORE module adds the following functionality:

- A function OSSL_STORE_open(), OSSL_STORE_load() and OSSL_STORE_close()
  that accesses a URI and helps loading the supported objects (PKEYs,
  CERTs and CRLs for the moment) from it.
- An opaque type OSSL_STORE_INFO that holds information on each loaded
  object.
- A few functions to retrieve desired data from a OSSL_STORE_INFO
  reference.
- Functions to register and unregister loaders for different URI
  schemes.  This enables dynamic addition of loaders from applications
  or from engines.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3542)
2017-06-29 11:55:31 +02:00
Richard Levitte
c785fd48e6 Make it possible to refer to ERR_R_UI_LIB
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3542)
2017-06-29 11:55:31 +02:00
Richard Levitte
4f79affb05 Adapt for BSD cryptodev.h differences
The BSD cryptodev.h doesn't have things like COP_FLAG_WRITE_IV and
COP_FLAG_UPDATE.  In that case, we need to implement that
functionality ourselves.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3744)
2017-06-28 12:54:33 +02:00
Richard Levitte
619eb33a0c Add new /dev/crypto engine
Based on cryptodev-linux

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3744)
2017-06-28 12:54:33 +02:00
Richard Levitte
9a32dcf42e Add the common error ERR_R_OPERATION_FAIL
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3744)
2017-06-28 12:54:33 +02:00
Matt Caswell
9368f86526 Add TLSv1.3 client side external PSK support
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3670)
2017-06-21 14:45:35 +01:00
Rich Salz
0ea155fc1c Add RAND_UNIMPLEMENTED error code
See old GitHub PR 38.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3714)
2017-06-20 08:12:04 -04:00
Bernd Edlinger
af6de400b4 Fix the error handling in ERR_get_state:
- Ignoring the return code of ossl_init_thread_start created a memory leak.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3712)
2017-06-19 08:56:50 -04:00
Matt Caswell
a055a88155 Allow the server to change the ciphersuite on resume
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/3623)
2017-06-16 10:57:59 +01:00
Bernd Edlinger
4fc426b789 Fix a possible crash in the error handling.
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3672)
2017-06-13 21:48:29 -04:00
Rich Salz
5816586ba4 Put message strings in state files
Add "*" as indicator meaning the function/reason is removed, so put an
empty string in the function/reason string table; this preserves backward
compatibility by keeping the #define's.

In state files, trailing backslash means text is on the next line.

Add copyright to state files

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3640)
2017-06-12 15:03:40 -04:00
Rich Salz
52df25cf2e make error tables const and separate header file
Run perltidy on util/mkerr
Change some mkerr flags, write some doc comments
Make generated tables "const" when genearting lib-internal ones.
Add "state" file for mkerr
Renerate error tables and headers
Rationalize declaration of ERR_load_XXX_strings
Fix out-of-tree build
Add -static; sort flags/vars for options.
Also tweak code output
Moved engines/afalg to engines (from master)
Use -static flag
Standard engine #include's of errors
Don't linewrap err string tables unless necessary

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3392)
2017-06-07 15:12:03 -04:00
Rich Salz
73bc53708c Only release thread-local key if we created it.
Thanks to Jan Alexander Steffens for finding the bug and confirming the
fix.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3592)
2017-05-31 14:10:05 -04:00
Rich Salz
1d3235f85c Fix pathname errors in errcode file
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3388)
2017-05-04 13:22:59 -04:00
Rich Salz
595b2a4237 Check fflush on BIO_ctrl call
Bug found and fix suggested by Julian Rüth.
Push error if fflush fails

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3266)
2017-04-28 14:14:59 -04:00
Richard Levitte
165f1c3ef3 In err_cleanup(), cleanup the thread local storage too
Fixes #3033

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3035)
2017-03-27 12:54:40 +02:00
Emilia Kasper
b53338cbf8 Clean up references to FIPS
This removes the fips configure option. This option is broken as the
required FIPS code is not available.

FIPS_mode() and FIPS_mode_set() are retained for compatibility, but
FIPS_mode() always returns 0, and FIPS_mode_set() can only be used to
turn FIPS mode off.

Reviewed-by: Stephen Henson <steve@openssl.org>
2017-02-28 15:26:25 +01:00
Richard Levitte
4984448648 In UI_OpenSSL's open(), generate an error on unknown errno
TTY_get() sometimes surprises us with new errno values to determine if
we have a controling terminal or not.  This generated error is a
helpful tool to figure out that this was what happened and what the
unknown value is.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2043)
2016-12-08 13:34:08 +01:00
Matt Caswell
e5c1361580 Ensure we handle len == 0 in ERR_err_string_n
If len == 0 in a call to ERR_error_string_n() then we can read beyond the
end of the buffer. Really applications should not be calling this function
with len == 0, but we shouldn't be letting it through either!

Thanks to Agostino Sarubbo for reporting this issue. Agostino's blog on
this issue is available here:
https://blogs.gentoo.org/ago/2016/10/14/openssl-libcrypto-stack-based-buffer-overflow-in-err_error_string_n-err-c/

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-10-15 11:30:15 +01:00
Matt Caswell
135648bcd0 Fix mem leaks during auto-deinit
Certain functions are automatically called during auto-deinit in order
to deallocate resources. However, if we have never entered a function which
marks lib crypto as inited then they never get called. This can happen if
the user only ever makes use of a small sub-set of functions that don't hit
the auto-init code.

This commit ensures all such resources deallocated by these functions also
init libcrypto when they are initially allocated.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Ben Laurie <ben@openssl.org>
2016-09-08 12:40:19 +01:00
Rich Salz
219116d866 Remove get_hash completely
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1389)
2016-08-04 14:23:08 -04:00